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**Aryan** · 01-14-2009, 09:39 AM

Query Approved.

**need4torque** · 01-14-2009, 12:13 PM

You can use the Universal filter Kn rc-1060. However dont expect any significant changes in power other than the intake roar. The filter will probably make your bike run lean and will help it rev better( which on a bull doesnt make much sense!).

**jayprashanth** · 01-14-2009, 09:33 PM

If your bullet runs lean, it will overheat and overheating is not good(potential engine seizing factor) for your bullet. Along with the K&N, I suggest you upjet your carb with larger size main and pilot jets.

If you plonk in a grilled goldstar silencer, you will get a meatier thump. I am not suggesting a free flow goldie as it will wake your neighborhood up every night

With these two changes, you are vastly improving the breathing of your bullet. So you can expect a 25% power increase in your RWHP from about 12-13 to 15-16 hp with nice grunt that'll make you grin each time you twist the throttle.

**Augustine** · 01-14-2009, 11:19 PM

Hi, Many thanks for guiding me. Will up jetting both the main and pilot jets cause a reduction in mileage? Also, what is the size of jets I should go for or what make / no. would you suggest? thanks and regards

**Akshay.** · 01-15-2009, 04:06 AM

Originally posted by jayprashanth View Post

If your bullet runs lean, it will overheat and overheating is not good(potential engine seizing factor) for your bullet. Along with the K&N, I suggest you upjet your carb with larger size main and pilot jets.

If you plonk in a grilled goldstar silencer, you will get a meatier thump. I am not suggesting a free flow goldie as it will wake your neighborhood up every night

With these two changes, you are vastly improving the breathing of your bullet. So you can expect a 25% power increase in your RWHP from about 12-13 to 15-16 hp with nice grunt that'll make you grin each time you twist the throttle.

25% increase with a K&N and a goldstar-lol

**desideep** · 01-15-2009, 05:36 AM

Originally posted by Akshay. View Post

25% increase with a K&N and a goldstar-lol

Akshay i did not even want to comment on this one hehehe.

**jayprashanth** · 01-15-2009, 09:33 AM

Yes, you should get a 25% increase in RWHP by imrpoving the breathing. There are dyno charts to back this data. here you go boys. Engine modifications and resulting improvements..... . From what I have gathered from RE forums, the Bullet has crappy breathing as the OE air filter and silencer are very restrictive. By remedying this, power should naturally increase. Won't it?

**Akshay.** · 01-16-2009, 12:05 AM

Originally posted by jayprashanth View Post

Yes, you should get a 25% increase in RWHP by imrpoving the breathing. There are dyno charts to back this data. here you go boys. Engine modifications and resulting improvements..... . From what I have gathered from RE forums, the Bullet has crappy breathing as the OE air filter and silencer are very restrictive. By remedying this, power should naturally increase. Won't it?

I would appreciate if you could do a dyno run of such a bike and post results here

**jayprashanth** · 01-16-2009, 09:02 AM

Yeah, I will try to do that once I get my LB500 and eventually make these mods. Till then, you'll have to go by Hitchcock's data

. IMHO, they are pretty reliable. Meanwhile, are motorcycle dynos available down south, except of course at factories like TVS and Royal Enfield? Any pointers to this would be highly appreciated.

**Jokerman** · 04-02-2009, 10:56 PM

Hey

Was wondering if there is an OEM replacement filter for the bullet. So we dont have to make it look tacky when we pimp it up.

I knw there is one but its nt available.

any help?

**jayprashanth** · 04-02-2009, 11:10 PM

Jokerman,

You can shoehorn the K&N universal filter into the airbox of the stock bullet. It has been done with pretty good results. Here is the link. K&N Filter in Stock Airbox with No Sawing Required.
But from what I've heard, RDD filters filter better than K&N especially in dusty Indian conditions. But, I don't know if Ron sells RDD filters for the bullet. I'l ask people at RDD and get back. If torqu3e is around, he'll chip in.

**desideep** · 04-02-2009, 11:50 PM

Originally posted by jayprashanth View Post

Jokerman,

You can shoehorn the K&N universal filter into the airbox of the stock bullet. It has been done with pretty good results. Here is the link. K&N Filter in Stock Airbox with No Sawing Required.

But from what I've heard, RDD filters filter better than K&N especially in dusty Indian conditions. But, I don't know if Ron makes RDD filters for the bullet. I'l ask people at RDD and get back. If torqu3e is around, he'll chip in.

actually i have4 personally seen a lot of change in the behaviour of the bike by adding a goldie and running the bike without a filter but again i dont think that it would be 25 %. and PRAKAHR would know what filter goes into the OEM place of the Electra he helped a Guy from America buy it.

**jayprashanth** · 04-03-2009, 10:42 AM

Amber Bhai,

I quoted the 25% power increase figure from the dyno charts of Hitchcock motorcycles. They actually claim 33% with a bigger carb. And they have dyno tests to prove their figures. Most forumers at Enfield Motorcycles/Bulletech(yahoo groups) also seem to agree with this figure. You can't argue too much with a dyno chart from a reputed tuner, can you? that said, we need to put a bull on the dyno and see for ourselves.

**Dogg** · 04-03-2009, 08:19 PM

Originally posted by Augustine View Post

Hi,

I want to fit K&N filter for my bullet electra 5S, which is the right model which I should get?

Can you please give me the model no of K&N filter?

Also, what is the increase in performance
- power?
- mileage?

thanks and regards

better go for a r1100 as u got a bigger rig...
used the r1060,but i guess a r1100 will perform better than a rc1060 on a re....

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